Is it safe to drive with this code?

Driving may be possible in the short term, but the restraints control module may have disabled certain airbag functions or seatbelt monitoring features, which can compromise occupant protection in an accident. Refer to our site disclaimer and have the system diagnosed promptly to restore full SRS capability.

An illuminated airbag or seatbelt warning lamp at the time of the MOT test may result in a failure under the supplementary restraint system checks—what matters is the state of the malfunction indicator lamp during the inspection itself; see our disclaimer for further guidance.

Roughly how much does it cost to fix?

Repair costs vary widely depending on the root cause. Simple connector cleaning or debris removal can be low two-figure if carried out by an independent technician, whereas replacement of the entire seatbelt buckle assembly typically falls into the low-to-mid three-figure range including parts and labour; dealer charges may push costs towards the high three-figure band if a new OEM buckle and harness are required.

Can I clear the code and ignore it if the light goes off?

Clearing the code may temporarily extinguish the warning lamp, but the underlying circuit fault often recurs and the restraints module may continue to log crash data or inhibit deployment functions—it is advisable to trace the electrical cause rather than simply erasing stored faults.

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← All fault codes | Electrical & Sensors

B0053

Body

Second Row Left Seatbelt Sensor (Subfault)

The Restraints Control Module has detected a potential fault with the buckle sensor or monitoring circuit for the second-row left seatbelt position, which may affect how the supplementary restraint system monitors seatbelt status.

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ⓘ Information only. This page provides general educational information about fault code B0053. We do not assess the urgency or safety implications of any specific fault. That requires in-person diagnosis by a qualified mechanic. Full terms.

Recommended next steps

Whether a fault is urgent, drivable, or routine depends entirely on the cause on a specific vehicle, and that can only be determined by a qualified mechanic with diagnostic equipment. If a warning light is illuminated, the most reliable next step is professional diagnosis.

What does B0053 mean?

B0053 is a Body (airbags, seat belts, body electronics) fault code. It indicates: Second Row Left Seatbelt Sensor (Subfault).

This is a standardised OBD-II code. The technical definition is the same regardless of the make or model of vehicle, although specific causes and symptoms can vary between vehicles.

About Electrical & Sensors codes

Codes in the Electrical & Sensors category.

B0053 is one of 4,010 codes in this category. Browse all Electrical & Sensors codes →

What we know about B0053 specifically

We record the SAE J2012 standardised definition and the system this code belongs to, but we have not yet published detailed driver-reported symptoms, common causes, or step-by-step diagnostic guidance for B0053.

Rather than invent that information by generating generic content from a template, we leave it out. For specific guidance, the most reliable sources are:

•your vehicle's own service manual or manufacturer-specific technical bulletins
•a qualified mechanic with a manufacturer-level diagnostic tool
•a marque specialist familiar with your make and model

Codes nearby

Codes adjacent to B0053 in the B-code series. Many fault codes appear together with their neighbours because they relate to the same circuit or component.

B0050 Driver Seatbelt Sensor (Subfault)

B0051 First Row Center Seatbelt Sensor (Subfault)

B0052 Passenger Seatbelt Sensor (Subfault)

B0054 Second Row Center Seatbelt Sensor (Subfault)

B0055 Second Row Right Seatbelt Sensor (Subfault)

B0056 Third Row Left Seatbelt Sensor (Subfault)

Other Electrical & Sensors codes

Other fault codes in the same system as B0053. The ones with detailed guides have plain-English explanations, symptoms, causes, and diagnostic steps.

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B2100

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C2000

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P0030

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P0031

Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) Detailed guide

Spotted an issue or have something to add? Mechanics, technicians, and drivers who have first-hand experience with B0053 can submit a correction or expansion. We review every submission before publishing, mechanic submissions are prioritised.

Information only, not professional advice

The information on this page is provided for general guidance and educational purposes only. It is not a substitute for diagnosis or repair advice from a qualified mechanic. Always verify any fault before paying for repairs. carfaultcodes.co.uk accepts no liability for decisions made based on this information. Full terms →

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